give it to the twin pillars of politics, the relentless candidates barack obama and mitt romney, for waging the best and worst presidential campaign of the year. >> thank you, thank you, thank you! >> thank you so much! >> best, because it was at times, a riveti ining battle fo control of the nation. worst because it often became a war of cheap shots, questionable facts, and everything else that just exhausts voters. >> i don't think so there's anything else that immediately, so completely sucked up all the energy, all oxygen in the year. >> to enforce the law -- >> worst, republican roulette. the party primary that seemed to have a new up and coming favorite, every ten minutes. rick perry, herman cain, michele bachmann, newt gingrich, rick santorum. >> what a freak show, right? that whole primary season. but it was fun. i mean, it was democracy in all its messiness and glory, with issues, but also some crazy stuff. >> ♪ america, america >> it was fascinating to watch, the party sort of trying to define itself. >> what do you want me to tell romney? >> worst empty chair supposedly